Zusammenfassung
Das Multicenter Selective Lymphadenectomy Trial 1, in welchem eine
frühzeitige Exzision von Lymphknotenmetastasen maligner Melanome nach
Sentinel-Lymphonodektomie (SLNE) mit Beobachtung verglichen wird, hat ein
widersprüchliches Ergebnis erbracht. Die Gesamtpopulation der Patienten
mit primären Melanomen (Breslow-Index
1,2 – 3,5 mm) konnte hinsichtlich des
Overall-Survivals nicht vom Sentinel-Verfahren profitieren. Dagegen fand sich
ein signifikanter Vorteil für Patienten mit Frühexzision von
Lymphknotenmetastasen durch SLNE und komplette regionale Lymphadenektomie,
verglichen mit Patienten, bei denen im weiteren Verlauf der Erkrankung eine
Lymphadenektomie klinisch vergrößerter Lymphknotenmetastasen
durchgeführt wurde. Die vorliegende Arbeit versucht, die Ergebnisse zu
interpretieren und Schlussfolgerungen für den klinischen Alltag zu
finden.
Abstract
The Multicenter Selective Lymphadenectomy Trial 1, comparing the
sentinel procedure with observation, was recently published. Unfortunately,
there was no OS benefit in the whole population of patients with intermediate
thick primary melanomas (Breslow-Index
1.2 – 3.5 mm). However, lymph node positive patients
seemed to benefit from early performed lymph node excision. The survival rate
was significantly improved for the subgroup with positive SNB and subsequent
immediate CLND, when compared with observation and delayed CLND for clinical
nodal recurrence only. In the present paper, we try to interpret these
conflicting results.
Literatur
1
Morton D L, Thompson J F, Cochran A J. et al., .
Sentinel-node biopsy or nodal
observation in melanoma.
N Engl J Med..
2006;
355
1307-1317
2
Eggermont A M, Voit C.
Management of melanoma: a European
perspective.
Surg Oncol Clin N Am.
2008;
17
635-648
3
Ross M I, Gershenwald J E.
How should we view the results of the Multicenter
Selective Lymphadenectomy Trial-1 (MSLT-1)?.
Ann Surg Oncol.
2008;
15
670-673
4
Kretschmer L, Hilgers R.
Research supports the view that sentinel node
biopsy is the standard of care in high-risk primary melanoma.
J Clin Oncol..
2006;
24
2965-1966
5
Cascinelli N, Morabito A, Santinami M. et al .
Immediate or delayed dissection of
regional nodes in patients with melanoma of the trunk: a randomised trial. WHO
Melanoma Programme.
Lancet.
1998;
351
793-796
6
Morton D L, Hoon D S, Cochran A J. et al .
Lymphatic mapping and sentinel
lymphadenectomy for early-stage melanoma: therapeutic utility and implications
of nodal microanatomy and molecular staging for improving the accuracy of
detection of nodal micrometastases.
Ann Surg.
2003;
238
538-549
7
Kretschmer L, Hilgers R, Möhrle M. et al .
Patients with lymphatic metastasis of
cutaneous malignant melanoma benefit from sentinel lymphonodectomy and early
excision of their nodal disease.
Eur J Cancer.
2004;
40
212-218
8
Kretschmer L, Preusser K P, Marsch W C, Neumann C.
Prognostic factors of overall survival in
patients with delayed lymph node dissection for cutaneous malignant
melanoma.
Melanoma Res.
2000;
10
483-489
9
Thomas J M.
Prognostic false-positivity of the sentinel node
in melanoma.
Nat Clin Pract Oncol.
2008;
5
18-23
10
Starz H, Balda B R, Krämer K U. et al .
A micromorphometry-based concept for
routine classification of sentinel lymph node metastases and its clinical
relevance for patients with melanoma.
Cancer.
2001;
91
2110-2121
11
van Akkooi A C, de Wilt J H, Verhoef C. et al .
Clinical relevance of melanoma
micrometastases (< 0.1 mm) in sentinel nodes: are these nodes
to be considered negative?.
Ann Oncol.
2006;
17
1578-1585
12
Satzger I, Völker B, Meier A. et al .
Prognostic significance of isolated
HMB45 or Melan A positive cells in Melanoma sentinel lymph nodes.
Am J Surg Pathol.
2007;
31
1175-1180
13
Zapas J L, Coley H C, Beam S L. et al .
The risk of regional lymph node
metastases in patients with melanoma less than 1.0 mm thick:
recommendations for sentinel lymph node biopsy.
J Am Coll Surg.
2003;
197
403-407
14
Cascinelli N, Bombardieri E, Bufalino R. et al .
Sentinel and nonsentinel node status
in stage IB and II melanoma patients: two-step prognostic indicators of
survival.
J Clin Oncol.
2006;
24
4464-4471
15
Gershenwald J E, Andtbacka R H, Prieto V G. et al .
Microscopic tumor burden in sentinel
lymph nodes predicts synchronous nonsentinel lymph node involvement in patients
with melanoma.
J Clin Oncol.
2008;
26
4296-4303
16
Wong S L, Morton D L, Thompson J F. et al .
Melanoma patients with positive
sentinel nodes who did not undergo completion lymphadenectomy: a
multi-institutional study.
Ann Surg Oncol.
2006;
13
809-816
17
Morton D L, Cochran A J, Thompson J F. et al. .
Sentinel node biopsy for early-stage melanoma: accuracy
and morbidity in MSLT-I, an international multicenter trial.
Ann Surg.
2005;
242
302-311
18
Kretschmer L, Thoms K M, Peeters S. et al .
Postoperative morbidity of lymph node
excision for cutaneous melanoma-sentinel lymphonodectomy versus complete
regional lymph node dissection.
Melanoma Res.
2008;
18
16-21
19
Starz H, Balda B R.
Benefit of sentinel lymphadenectomy for patients
with nonulcerated cutaneous melanomas in the Breslow range between 0.76 and
1 mm: a follow-up study of 148 patients.
Int J Cancer.
2007;
121
689-693
20
Wright B E, Scheri R P, Ye X. et al .
Importance of sentinel lymph node
biopsy in patients with thin melanoma.
Arch Surg.
2008;
143
892-899
21
Gutzmer R, Satzger I, Thoms K M. et al .
Sentinel lymph node status is the most
important prognostic factor for thick
(> or = 4 mm) melanomas.
J Dtsch Dermatol Ges.
2008;
6
198-203
22
Paek S C, Griffith K A, Johnson T M. et al .
The impact of factors beyond Breslow
depth on predicting sentinel lymph node positivity in melanoma.
Cancer.
2007;
109
100-108
23
Voit C, Kron M, Schäfer G. et al .
Ultrasound-guided fine needle
aspiration cytology prior to sentinel lymph node biopsy in melanoma
patients.
Ann Surg Oncol.
2006;
13
1682-1689
Prof. Dr. med. Lutz Kretschmer
Abteilung für Dermatologie und
Venerologie Georg-August Universität
von-Siebold-Straße 3 37075 Göttingen
Email: lkre@med.uni-goettingen.de